"copy" captcha image

Johan Persson

Hi, I´m creating a windows forms program that is used for creating accounts online on a few different websites.

Everything is working fine exept the captcha code of course. Now please don't misunderstand me, I'm not out to spam pages or anything like that.

What I want to do here is to somehow "copy" the generated captcha image and present it on my windows form. The problem is that the "src=" in the HTML tag doesn't call for a static URL, but calls a PHP-page that generates the captcha. I hope you understand what I want to do.. if not, please ask and I will try to be more clear.

2 Replies

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Johan Persson16y ago
This is good, but this downloads a second and new captcha that doesnt work with the posting. I need the exact same captcha that was generated with the form.
PJ Martins16y ago
You can use the WebClient to download the image by feeding it the url of the php link as such:
System.Net.WebClient client = new System.Net.WebClient();
// download file
client.DownloadFile("<>.php", "<>.jpg");
// retrieve file bytes
byte[] imgBytes = client.DownloadData("<>.php");